    <form>
    <div id ="alertas"></div>
        <table>
            <tr>
                <td>CPF</td>
                <td> <input name ='cpf_func' size ='14' maxlength ='14' id = 'cpf_func' onkeypress ="mascara(this,cpf)" ></td>
            </tr>
        </table>
    <div id ="botoes">
        <button type = 'button' onclick = 'buscarFuncionario()'>Buscar</button>
    </div>
    </form>